/**
 *  Copyright (C) 2021 FISCO BCOS.
 *  SPDX-License-Identifier: Apache-2.0
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 * @brief implementation for ed25519 keyPair algorithm
 * @file Ed25519KeyPair.cpp
 * @date 2021.04.01
 * @author yujiechen
 */

#include <bcos-crypto/signature/Exceptions.h>
#include <bcos-crypto/signature/ed25519/Ed25519KeyPair.h>
#include <wedpr-crypto/WedprCrypto.h>

using namespace bcos;
using namespace bcos::crypto;

PublicPtr bcos::crypto::ed25519PriToPub(SecretPtr _secretKey)
{
    CInputBuffer privateKey{_secretKey->constData(), _secretKey->size()};
    auto pub = std::make_shared<KeyImpl>(ED25519_PUBLIC_LEN);
    COutputBuffer publicKey{pub->mutableData(), pub->size()};
    // get public key
    if (wedpr_ed25519_derive_public_key(&privateKey, &publicKey) != WEDPR_SUCCESS)
    {
        BOOST_THROW_EXCEPTION(
            PriToPublicKeyException() << errinfo_comment("ed25519PriToPub exception"));
    }
    return pub;
}